Answer:
n = -2
Step-by-step explanation:
21 = -5x + 11
10 = -5x
n = -2
It would be the second option.
Good luck :D
Answer:
y = 17
Step-by-step explanation:
We have five values : 2 , 5 , 7 , y , 9
and the mean = 8
this means :

Verification: (2+5+7+17+9)÷5 = 8
Answer: OPTION B
Step-by-step explanation:
The equation of a line that passes through the origin is the following:

Where "m" is the slope of the line.
By definition, Proportional relationships have the following form:

Where "k" is the Constant of proportionality.
Then, as you can notice, if you graph a Proportional relationship you will get a line that passes through the origin.
Therefore, based on the explained above, you can conclude that the option that shows a function that represents a Proportional relationship is the Option B.
Then, this is:

A + b = 80 + 45 = 125
Therefore, C is your answer.